(45x^4+9x^3+3x^2)/9x^3

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Solution for (45x^4+9x^3+3x^2)/9x^3 equation: 


x in (-oo:+oo)

x^3*((45*x^4+9*x^3+3*x^2)/9) = 0

(x^3*(45*x^4+9*x^3+3*x^2))/9 = 0

45*x^4+9*x^3+3*x^2 = 0

3*x^2*(15*x^2+3*x+1) = 0

15*x^2+3*x+1 = 0

DELTA = 3^2-(1*4*15)

DELTA = -51

DELTA < 0

3*x^2 = 0

(3*x^2*x^3)/9 = 0

( 3*x^2 )

3*x^2 = 0 // : 3

x^2 = 0

x = 0

( x^3 )

1*x^3 = 0 // : 1

x^3 = 0

x = 0

x in { 0, 0 }

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